:root{--bg:#111827;--bg-elevated:#1f2937;--bg-card:#1f2937;--border:#374151;--border-active:#4b5563;--placeholder:#4b5563;--text-label:#9ca3af;--text-faint:#6b7280;--text-muted:#9ca3af;--text-subtle:#9ca3af;--text-secondary:#d1d5db;--text-primary:#f9fafb;--footer-color:#4b5563;--scrollbar:#374151}html.light{--bg:#c8d3e3;--bg-elevated:#d8e2f0;--bg-card:#d8e2f0;--border:#b0bdd0;--border-active:#6366f1;--placeholder:#7a8ca0;--text-label:#374151;--text-faint:#4b5563;--text-muted:#374151;--text-subtle:#4b5563;--text-secondary:#1f2937;--text-primary:#0f172a;--footer-color:#4b5563;--scrollbar:#b0bdd0}*,:before,:after{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);color:var(--text-primary);height:100vh;font-family:Inter,Segoe UI,system-ui,sans-serif;overflow:hidden}.app{flex-direction:column;height:100vh;display:flex}.header{border-bottom:1px solid var(--border);background:var(--bg-elevated);flex-shrink:0;align-items:center;gap:12px;padding:14px 28px;display:flex}.header-logo{background:linear-gradient(135deg,#4f46e5,#7c3aed);border-radius:9px;flex-shrink:0;justify-content:center;align-items:center;width:34px;height:34px;display:flex;box-shadow:0 0 0 1px #6366f14d,0 4px 12px #6366f140}.header-logo img{image-rendering:auto}.header h1{letter-spacing:-.5px;color:var(--text-primary);font-size:20px;font-weight:800}.header-title-accent{background:linear-gradient(135deg,#818cf8,#c084fc);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.header-subtitle{color:var(--text-label);margin-left:auto;font-size:12px}.workspace{flex:1;grid-template-columns:1fr 340px;min-height:0;display:grid}.left-panel{border-right:1px solid var(--border);flex-direction:column;gap:12px;min-height:0;padding:24px 20px 24px 28px;display:flex;overflow:hidden}.input-section{flex-shrink:0}.section-label{letter-spacing:.1em;text-transform:uppercase;color:var(--text-label);margin-bottom:8px;font-size:10px;font-weight:700}.textarea{background:var(--bg-elevated);border:1px solid var(--border);width:100%;height:180px;color:var(--text-primary);resize:none;border-radius:10px;padding:14px 16px;font-family:inherit;font-size:15px;line-height:1.65;transition:border-color .2s}.textarea::placeholder{color:var(--placeholder)}.textarea:focus{border-color:#6366f1;outline:none;box-shadow:0 0 0 3px #6366f11a}.textarea-warn{border-color:#d97706!important}.textarea-error{border-color:#ef4444!important}.textarea-footer{justify-content:space-between;align-items:center;min-height:18px;margin-top:6px;display:flex}.hint{font-size:12px;font-weight:500}.hint-warning{color:#d97706}.hint-error{color:#ef4444}.char-count{color:var(--text-label);font-size:12px;transition:color .2s}.char-count-limit{color:#ef4444;font-weight:600}.feedback-msg{border-radius:10px;align-items:flex-start;gap:8px;padding:10px 14px;font-size:13px;line-height:1.5;display:flex}.feedback-icon{flex-shrink:0;margin-top:1px}.feedback-error{color:#f87171;background:#ef444414;border:1px solid #ef444440}.feedback-warning{color:#fbbf24;background:#d9770614;border:1px solid #d9770640}.result-area{flex-shrink:0}.result-card{background:var(--bg-card);border:1px solid var(--border);border-radius:12px;animation:.2s fadeIn;overflow:hidden}@keyframes fadeIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.result-header{border-bottom:1px solid var(--border);background:var(--bg-elevated);justify-content:space-between;align-items:center;padding:10px 16px;display:flex}.result-type-badge{letter-spacing:.07em;text-transform:uppercase;color:#a5b4fc;background:#6366f126;border:1px solid #6366f133;border-radius:20px;padding:3px 10px;font-size:10px;font-weight:700}.result-body{padding:16px}.result-text{color:var(--text-secondary);font-size:14px;line-height:1.7}.keywords-wrap{flex-wrap:wrap;gap:7px;display:flex}.keyword-tag{color:#a5b4fc;background:#6366f11a;border:1px solid #6366f140;border-radius:20px;padding:5px 12px;font-size:12px;font-weight:500}.topic-wrap{flex-direction:column;gap:6px;display:flex}.topic-top{align-items:center;gap:8px;display:flex}.topic-main-badge{color:#a5b4fc;background:#6366f12e;border:1px solid #6366f166;border-radius:20px;padding:3px 12px;font-size:12px;font-weight:600}.topic-description{color:var(--text-subtle);margin-top:4px;font-size:12px;line-height:1.5}.sentiment-wrap{flex-direction:column;gap:12px;display:flex}.sentiment-top{align-items:center;gap:12px;display:flex}.sentiment-badge{border-radius:8px;padding:5px 14px;font-size:13px;font-weight:700}.sentiment-badge.Positive{color:#34d399;background:#10b98126;border:1px solid #10b98140}.sentiment-badge.Negative{color:#f87171;background:#ef444426;border:1px solid #ef444440}.sentiment-badge.Neutral{color:var(--text-subtle);background:#9ca3af1a;border:1px solid #9ca3af33}.sentiment-badge.Mixed{color:#fbbf24;background:#f59e0b26;border:1px solid #f59e0b40}.sentiment-score{color:var(--text-muted);font-size:12px}.sentiment-score span{color:var(--text-primary);font-weight:600}.confidence-bar-bg{background:var(--border);border-radius:3px;height:5px;overflow:hidden}.confidence-bar-fill{background:linear-gradient(90deg,#6366f1,#8b5cf6);border-radius:3px;height:100%;transition:width .6s}.sentiment-explanation{color:var(--text-subtle);background:var(--bg-elevated);border-left:3px solid #6366f1;border-radius:8px;padding:10px 12px;font-size:13px;line-height:1.6}.result-lang-note{color:#0ea5e9;letter-spacing:.06em;text-transform:uppercase;margin-bottom:8px;font-size:11px;font-weight:700}.upload-row{align-items:center;gap:10px;margin-top:8px;display:flex}.upload-btn{border:1px dashed var(--border);color:var(--text-subtle);cursor:pointer;white-space:nowrap;background:0 0;border-radius:8px;align-items:center;gap:6px;padding:6px 14px;font-family:inherit;font-size:12px;transition:all .15s;display:inline-flex}.upload-btn:hover:not(:disabled){color:#a5b4fc;background:#6366f10f;border-color:#6366f1}.upload-btn:disabled{opacity:.5;cursor:not-allowed}.upload-icon{flex-shrink:0;display:block}.upload-hint{color:var(--text-faint);font-size:11px}@keyframes spin{to{transform:rotate(360deg)}}.upload-spinner{border:2px solid var(--text-faint);border-top-color:#6366f1;border-radius:50%;flex-shrink:0;width:12px;height:12px;animation:.7s linear infinite spin}.text-stats{background:var(--bg-elevated);border:1px solid var(--border);opacity:.4;border-radius:8px;align-items:center;gap:6px;margin-top:8px;padding:7px 12px;transition:border-color .2s,opacity .2s;display:flex}.text-stats-active{opacity:1;border-color:var(--border)}.stat-item{color:var(--text-faint);white-space:nowrap;font-size:12px}.stat-value{color:#a5b4fc;margin-right:3px;font-size:13px;font-weight:700}.flesch-badge{vertical-align:middle;border-radius:10px;margin-left:4px;padding:1px 6px;font-size:10px;font-weight:600}.flesch-easy{color:#6ee7b7;background:#34d39926;border:1px solid #34d39940}.flesch-medium{color:#fcd34d;background:#fbbf2426;border:1px solid #fbbf2440}.flesch-hard{color:#fca5a5;background:#f8717126;border:1px solid #f8717140}.stat-sep{background:var(--border);flex-shrink:0;width:1px;height:12px}.stream-cursor{vertical-align:text-bottom;background:#6366f1;border-radius:1px;width:2px;height:1em;margin-left:2px;animation:.6s step-end infinite blink;display:inline-block}@keyframes blink{0%,to{opacity:1}50%{opacity:0}}.history-section{flex-direction:column;flex:1;min-height:0;display:flex;overflow:hidden}.history-header{flex-shrink:0;justify-content:space-between;align-items:center;margin-bottom:10px;display:flex}.clear-btn{color:var(--text-faint);border:1px solid var(--border);cursor:pointer;background:0 0;border-radius:6px;padding:3px 10px;font-family:inherit;font-size:11px;transition:all .15s}.clear-btn:hover{color:#f87171;border-color:#ef44444d}.history-list{flex-direction:column;flex:1;gap:10px;padding-right:4px;display:flex;overflow-y:auto}.history-list::-webkit-scrollbar{width:4px}.history-list::-webkit-scrollbar-track{background:0 0}.history-list::-webkit-scrollbar-thumb{background:var(--scrollbar);border-radius:2px}.history-empty{color:var(--placeholder);text-align:center;flex-direction:column;flex:1;justify-content:center;align-items:center;gap:6px;padding:40px 0;display:flex}.history-empty-icon{opacity:.3;margin-bottom:4px;font-size:28px}.history-empty p{font-size:13px;line-height:1.5}.history-empty p:first-of-type{color:var(--text-label);font-weight:500}.history-card{background:var(--bg-card);border:1px solid var(--border);border-radius:12px;flex-shrink:0;animation:.2s slideIn;overflow:hidden}@keyframes slideIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.history-card-header{background:var(--bg-elevated);border-bottom:1px solid var(--border);align-items:center;gap:8px;padding:9px 12px;display:flex}.history-type-icon{font-size:13px}.history-time{color:var(--text-label);margin-left:auto;font-size:11px}.history-actions{gap:4px;margin-left:6px;display:flex}.icon-btn{border:1px solid var(--border);width:24px;height:24px;color:var(--text-faint);cursor:pointer;background:0 0;border-radius:6px;justify-content:center;align-items:center;font-family:inherit;font-size:12px;transition:all .15s;display:flex}.icon-btn:hover{background:var(--border);color:var(--text-primary)}.icon-btn-remove:hover{color:#f87171;background:#ef44440f;border-color:#ef44444d}.history-card-body{padding:14px}.history-card-updating{border-color:#6366f14d}.body-updating{opacity:.45;transition:opacity .3s}.updating-badge{color:#6366f1;letter-spacing:.05em;align-items:center;gap:4px;font-size:10px;font-weight:600;animation:1.2s ease-in-out infinite pulse;display:flex}@keyframes pulse{0%,to{opacity:1}50%{opacity:.4}}.history-loading{border-style:dashed;border-color:#6366f1}.right-panel{flex-direction:column;gap:0;padding:24px 20px;display:flex;overflow-y:auto}.right-panel::-webkit-scrollbar{width:4px}.right-panel::-webkit-scrollbar-track{background:0 0}.right-panel::-webkit-scrollbar-thumb{background:var(--scrollbar);border-radius:2px}.panel-section{border-bottom:1px solid var(--border);margin-bottom:20px;padding-bottom:20px}.panel-section:last-child{border-bottom:none;margin-bottom:0;padding-bottom:0}.actions{grid-template-columns:1fr 1fr;gap:8px;display:grid}.action-btn{border:1px solid var(--border);background:var(--bg-card);color:var(--text-secondary);cursor:pointer;text-align:left;border-radius:10px;align-items:center;gap:8px;padding:11px 12px;font-family:inherit;font-size:13px;font-weight:500;transition:all .15s;display:flex}.action-btn:hover:not(:disabled){color:var(--text-primary);background:#6366f114;border-color:#6366f1;box-shadow:0 2px 12px #6366f126}.action-btn:disabled{opacity:.4;cursor:not-allowed}.action-btn.active{color:#fff;background:linear-gradient(135deg,#4f46e5,#7c3aed);border-color:#0000;box-shadow:0 3px 12px #6366f159}.btn-icon{flex-shrink:0;font-size:16px}.btn-text{flex-direction:column;display:flex}.btn-title{font-size:12px;font-weight:600}.btn-desc{color:var(--text-muted);margin-top:1px;font-size:10px}.action-btn.active .btn-desc{color:#c4b5fd}.model-chips{gap:8px;display:flex}.model-chip{border:1px solid var(--border);background:var(--bg-card);color:var(--text-subtle);cursor:pointer;text-align:left;border-radius:10px;flex-direction:column;flex:1;align-items:flex-start;padding:9px 12px;font-family:inherit;font-size:12px;transition:all .15s;display:flex}.model-chip:hover:not(:disabled){color:var(--text-primary);border-color:#6366f1}.model-chip.selected{color:#a5b4fc;background:#6366f126;border-color:#6366f1}.model-chip-name{font-size:12px;font-weight:600}.model-chip-desc{color:var(--text-muted);margin-top:2px;font-size:10px}.model-chip.selected .model-chip-desc{color:#818cf8}.model-chip:disabled{opacity:.4;cursor:not-allowed}.tone-chips{flex-wrap:wrap;gap:6px;margin-bottom:10px;display:flex}.tone-chip{border:1px solid var(--border);background:var(--bg-card);color:var(--text-subtle);cursor:pointer;border-radius:20px;padding:5px 12px;font-family:inherit;font-size:12px;transition:all .15s}.tone-chip:hover:not(:disabled){color:var(--text-primary);border-color:#6366f1}.tone-chip.selected{color:#a5b4fc;background:#6366f126;border-color:#6366f1;font-weight:600}.tone-chip:disabled{opacity:.4;cursor:not-allowed}.question-input{border:1px solid var(--border);background:var(--bg-card);width:100%;color:var(--text-primary);border-radius:10px;margin-bottom:10px;padding:9px 12px;font-family:inherit;font-size:13px;transition:border-color .2s}.question-input::placeholder{color:var(--text-label)}.question-input:focus{border-color:#7c3aed;outline:none;box-shadow:0 0 0 3px #7c3aed1a}.question-input:disabled{opacity:.4;cursor:not-allowed}.qa-wrap{flex-direction:column;gap:10px;display:flex}.qa-question{color:#a78bfa;background:#7c3aed14;border-left:3px solid #7c3aed;border-radius:8px;padding:8px 12px;font-size:13px;font-weight:600}.lang-select{border:1px solid var(--border);background:var(--bg-card);width:100%;color:var(--text-primary);cursor:pointer;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b7280' d='M6 8L1 3h10z'/%3E%3C/svg%3E");background-position:right 12px center;background-repeat:no-repeat;border-radius:10px;margin-bottom:10px;padding:9px 32px 9px 12px;font-family:inherit;font-size:13px;transition:border-color .2s}.lang-select:focus{border-color:#6366f1;outline:none}.lang-select:disabled{opacity:.4;cursor:not-allowed}.run-btn{cursor:pointer;border:none;border-radius:10px;width:100%;padding:10px;font-family:inherit;font-size:13px;font-weight:600;transition:all .18s}.run-btn.purple{color:#fff;background:linear-gradient(135deg,#7c3aed,#db2777);box-shadow:0 2px 10px #7c3aed40}.run-btn.indigo{color:#fff;background:linear-gradient(135deg,#4f46e5,#7c3aed);box-shadow:0 2px 10px #6366f14d}.run-btn.cyan{color:#fff;background:linear-gradient(135deg,#0ea5e9,#6366f1);box-shadow:0 2px 10px #0ea5e940}.run-btn:hover:not(:disabled){filter:brightness(1.1);transform:translateY(-1px)}.run-btn:disabled{opacity:.4;cursor:not-allowed;transform:none}.loader-wrap{color:var(--text-muted);align-items:center;gap:10px;padding:4px 0;font-size:13px;display:flex}.spinner{border:2px solid var(--border);border-top-color:#6366f1;border-radius:50%;flex-shrink:0;width:16px;height:16px;animation:.7s linear infinite spin}.footer{text-align:center;color:var(--footer-color);border-top:1px solid var(--border);flex-shrink:0;padding:10px;font-size:11px}@media (width<=720px){body{overflow:auto}.workspace{grid-template-columns:1fr;height:auto}.left-panel{border-right:none;border-bottom:1px solid var(--border)}.textarea{min-height:160px}.header-subtitle{display:none}.actions{grid-template-columns:1fr 1fr}}.panel-tabs{border-bottom:1px solid var(--border);flex-shrink:0;gap:4px;margin-bottom:4px;padding-bottom:16px;display:flex}.panel-tab{border:1px solid var(--border);color:var(--text-muted);cursor:pointer;letter-spacing:.02em;background:0 0;border-radius:8px;flex:1;padding:7px 10px;font-size:12px;font-weight:600;transition:all .15s}.panel-tab:hover{color:var(--text-secondary);background:var(--bg-card)}.panel-tab-active{color:#818cf8;background:#6366f126;border-color:#6366f1}.lang-detect-badge{color:#a5b4fc;background:#6366f11f;border:1px solid #6366f140;border-radius:6px;align-items:center;gap:4px;padding:2px 7px;font-size:11px;font-weight:600;display:inline-flex}.lang-detect-badge.detecting{color:var(--text-muted);background:0 0;border-color:#0000}.export-btn{border:1px solid var(--border);color:var(--text-muted);cursor:pointer;background:0 0;border-radius:6px;padding:4px 10px;font-size:11px;font-weight:600;transition:all .15s}.export-btn:hover{color:#a5b4fc;border-color:#6366f1}.compare-panel{flex-direction:column;flex:1;gap:0;min-height:0;display:flex}.compare-textareas{flex-direction:column;gap:10px;margin-bottom:12px;display:flex}.compare-textarea-wrap{flex-direction:column;gap:4px;display:flex}.compare-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.06em;font-size:11px;font-weight:600}.compare-textarea{background:var(--bg-elevated);border:1px solid var(--border);width:100%;min-height:90px;color:var(--text-primary);resize:vertical;border-radius:10px;padding:10px 12px;font-family:inherit;font-size:13px;transition:border-color .15s}.compare-textarea:focus{border-color:#6366f1;outline:none}.compare-textarea:disabled{opacity:.5}.compare-charcount{color:var(--text-faint);text-align:right;font-size:10px}.compare-result{background:var(--bg-elevated);border:1px solid var(--border);color:var(--text-secondary);white-space:pre-wrap;border-radius:10px;margin-top:4px;padding:12px;font-size:13px;line-height:1.6}.right-panel-chat{overflow:hidden}.chat-panel{flex-direction:column;flex:1;gap:10px;min-height:0;display:flex}.chat-context-note{border-radius:8px;margin-bottom:4px;padding:7px 10px;font-size:11.5px}.chat-context-ok{color:#34d399;background:#34d39914}.chat-context-warn{color:#f59e0b;background:#f59e0b14}.chat-messages{flex-direction:column;flex:1;gap:8px;min-height:0;padding:4px 2px;display:flex;overflow-y:auto}.chat-messages::-webkit-scrollbar{width:3px}.chat-messages::-webkit-scrollbar-track{background:0 0}.chat-messages::-webkit-scrollbar-thumb{background:var(--scrollbar);border-radius:2px}.chat-empty{text-align:center;color:var(--text-label);padding:20px 0;font-size:12px}.chat-bubble{border-radius:12px;max-width:88%;padding:9px 12px;font-size:13px;line-height:1.55}.chat-bubble-user{border:1px solid var(--border-active);color:#c7d2fe;background:#1e243a;border-bottom-right-radius:4px;align-self:flex-end}.chat-bubble-assistant{background:var(--bg-elevated);border:1px solid var(--border);color:var(--text-secondary);border-bottom-left-radius:4px;align-self:flex-start}.chat-bubble-text{white-space:pre-wrap;margin:0}.chat-typing{color:var(--text-faint);font-style:italic}.chat-input-row{align-items:center;gap:6px;display:flex}.chat-input{background:var(--bg-elevated);border:1px solid var(--border);color:var(--text-primary);border-radius:10px;flex:1;padding:9px 12px;font-family:inherit;font-size:13px;transition:border-color .15s}.chat-input:focus{border-color:#6366f1;outline:none}.chat-input:disabled{opacity:.5}.chat-send-btn{color:#fff;cursor:pointer;white-space:nowrap;background:#6366f1;border:none;border-radius:10px;flex-shrink:0;padding:9px 14px;font-size:13px;font-weight:600;transition:background .15s,opacity .15s}.chat-send-btn:hover:not(:disabled){background:#4f46e5}.chat-send-btn:disabled{opacity:.4;cursor:not-allowed}.theme-toggle{border:1px solid var(--border);background:var(--bg-card);width:32px;height:32px;color:var(--text-secondary);cursor:pointer;border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;transition:border-color .15s,color .15s,background .15s;display:flex}.theme-toggle:hover{color:#818cf8;background:#6366f11a;border-color:#6366f1}html.light .icon-btn:hover{background:var(--border);color:var(--text-primary)}html.light .history-card,html.light .result-card{box-shadow:0 1px 3px #00000012}html.light .header{box-shadow:0 1px 3px #0000000f}html.light .chat-bubble-user{border-color:var(--border-active);color:#3730a3;background:#e8edf8}html.light .sentiment-explanation{color:var(--text-muted)}html.light .lang-select option{background:var(--bg-elevated);color:var(--text-primary)}html.light .stat-value{color:#4338ca}html.light .lang-detect-badge{color:#4338ca;background:#4338ca1a;border-color:#4338ca40}html.light .lang-detect-badge.detecting{color:var(--text-muted);background:0 0;border-color:#0000}html.light .flesch-easy{color:#065f46;background:#0596691f;border-color:#0596694d}html.light .flesch-medium{color:#92400e;background:#b453091f;border-color:#b453094d}html.light .flesch-hard{color:#991b1b;background:#b91c1c1f;border-color:#b91c1c4d}html.light .model-chip.selected,html.light .tone-chip.selected{color:#312e81;background:#4338ca1f;border-color:#4338ca}html.light .model-chip.selected .model-chip-desc{color:#4338ca}html.light .panel-tab-active{color:#312e81;background:#4338ca1f;border-color:#4338ca}html.light .chat-context-ok{color:#065f46;background:#0596691a}html.light .chat-context-warn{color:#92400e;background:#b453091a}html.light .keyword-tag{color:#312e81;background:#4338ca1a;border-color:#4338ca4d}html.light .topic-main-badge{color:#312e81;background:#4338ca1f;border-color:#4338ca59}html.light .result-type-badge{color:#4338ca;background:#4338ca1a;border-color:#4338ca40}html.light .qa-question{color:#4338ca;background:#4338ca14;border-left-color:#4338ca}html.light .sentiment-score span{color:var(--text-primary)}
